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BLURRED VISION
 
 
 
 
กลไกการมองเห็น ,[object Object],[object Object],[object Object],[object Object]
 
 
 
Cause Refractive   errors Ocular  media  in origin แกล้งมัว Sensory  system  in origin
Refraction   error สายตาสั้น  (Myopia) สายตายาว  (Hyperopia) สายตาเอียง  (Astigmatism)
Ocular media กระจกตา  (Cornea) ช่องลูกตาส่วนหน้า  (Anterior chamber) เลนส์  (Lens) วุ้นตา  (Vitreous)
Sensory system Retina Optic nerve Optic chiasm Optic tract ,body ,radiation Occipital lobe
Malingering ,[object Object],[object Object]
Eye Exam ,[object Object],[object Object],[object Object],[object Object],[object Object]
Eye Exam ,[object Object],[object Object],[object Object],[object Object]
1.Pin hole 2.Pen light 4.RAPD 5.Fundus exam 6.Visual field 3.Red reflex 7.  อื่นๆ เช่น  MRI Visual loss  Dx. Improve Not improve Refractive  error Abnormal Normal Abnormal Normal Opacity of  ant. chamber,  cornea, lens Cataract,  Vitreous opacity,  Retinal disease Positive Negative Macula , Optic nerve  lesion Abnormal Normal Retinal  disease Abnormal Normal Chiasmatic to  occipital lobe lesion - Amblyopia  -  แกล้งมัว แกล้งมัว
การรักษา Refractive   errors Ocular  media  in origin แกล้งมัว Sensory  system  in origin Glasses Contact lens Surgery ทำให้  Optical  media  ใช้ได้ เหมือนเดิม แก้ที่สาเหตุ นั้นๆ ??? See next page
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Blurred Vision

  • 2.  
  • 3.  
  • 4.  
  • 5.  
  • 6.
  • 7.  
  • 8.  
  • 9.  
  • 10. Cause Refractive errors Ocular media in origin แกล้งมัว Sensory system in origin
  • 11. Refraction error สายตาสั้น (Myopia) สายตายาว (Hyperopia) สายตาเอียง (Astigmatism)
  • 12. Ocular media กระจกตา (Cornea) ช่องลูกตาส่วนหน้า (Anterior chamber) เลนส์ (Lens) วุ้นตา (Vitreous)
  • 13. Sensory system Retina Optic nerve Optic chiasm Optic tract ,body ,radiation Occipital lobe
  • 14.
  • 15.
  • 16.
  • 17. 1.Pin hole 2.Pen light 4.RAPD 5.Fundus exam 6.Visual field 3.Red reflex 7. อื่นๆ เช่น MRI Visual loss Dx. Improve Not improve Refractive error Abnormal Normal Abnormal Normal Opacity of ant. chamber, cornea, lens Cataract, Vitreous opacity, Retinal disease Positive Negative Macula , Optic nerve lesion Abnormal Normal Retinal disease Abnormal Normal Chiasmatic to occipital lobe lesion - Amblyopia - แกล้งมัว แกล้งมัว
  • 18. การรักษา Refractive errors Ocular media in origin แกล้งมัว Sensory system in origin Glasses Contact lens Surgery ทำให้ Optical media ใช้ได้ เหมือนเดิม แก้ที่สาเหตุ นั้นๆ ??? See next page